Never knew you could actually use Godot as a video editor, but cant say I'm surprised since Godot is so flexible😀.
Liked the feel of the track a lot! Only little thing I felt might make it even better, is making the dry instruments like the bouzouki and others more Wet with reverb so they would blend better with the more "in a big room" sounding Cinesamples Musio sounds.
I'm not sure if you have ReaPack installed for Reaper, but I highly recommend installing that and checking out all the great free community made plugins and scripts posted on the Reaper forums. For example Saike has made some great reverbs, synthesizers and other effects: Saike's workshop, and since you use orchestral stuff there's a handy articulation manager called Reaticulate which lets you control keyswitches from their own lane in the midi editor.